MW级重力储能系统设计及仿真实验  

Design and simulation of an MW-Level gravitational energy storage system

作　　者：曾小超 郭海斌 李建文[2] 王慧娟 姜健宁 王健[2] 刘伟民 ZENG Xiaochao;GUO Haibin;LI Jianwen;WANG Huijuan;JIANG Jianning;WANG Jian;LIU Weimin(North China Power Engineering Co.,Ltd.,China Power Engineering Consulting Group,Beijing 100120,China;State Key Laboratory of New Energy Power System(North China Electric Power University),Baoding 071003,China)

机构地区：[1]中国电力工程顾问集团华北电力设计院有限公司,北京100120 [2]新能源电力系统国家重点实验室(华北电力大学),河北保定071003

出　　处：《实验技术与管理》2025年第3期137-145,共9页Experimental Technology and Management

基　　金：中央高校基本科研业务费专项资金资助项目(2024MS111);中国电力工程顾问集团华北电力设计院有限公司揭榜挂帅项目“基于竖井的重力储能技术研究”(JBGS2023-03)。

摘　　要：重力储能技术是实现长时储能的重要技术途径,为电力系统起到了削峰填谷的作用,为新型电力系统的稳定运行和可持续发展提供了支持。仿真实验既可验证系统设计的可行性,也能够评估系统的运行性能,是重力储能示范工程技术落地的重要环节。该文以永磁同步电机、三电平变频变流器为重力储能系统的核心设备,根据电机功率等级进行变频器主电路参数设计,建立永磁同步电机的数学模型,提出适合削峰填谷需求的变流器控制策略并设计控制参数,最后通过MATLAB/Simulink搭建16MW重力储能仿真系统以验证系统设计与控制策略的有效性,并且评估了系统性能,为MW级重力储能系统的设计提供了理论参数。[Objective]Gravity-based energy storage technologies are emerging as an essential solution for addressing long-duration energy storage challenges,particularly in balancing the intermittency of renewable energy sources such as wind and solar power.These systems contribute significantly to peak shaving,load leveling,and enhancing grid stability—critical factors for the sustainable evolution of modern power grids.This study focuses on the design,modeling,and simulation of a large-scale gravity energy storage system with permanent magnet synchronous motors(PMSMs)and three-level inverters serving as its core components.This research aims to propose a reliable system design,develop an effective control strategy,and validate the system’s performance through comprehensive simulations.The goal is to provide valuable theoretical and practical insights into the design of MW-level gravity storage systems for future integration into power systems.[Methods]The system architecture integrates PMSMs,three-level inverters,and a gravity storage mechanism that converts potential energy to electrical energy and vice versa.PMSMs are chosen for their high efficiency,precise control,and scalability,making them ideal for large-scale energy storage applications.The three-level inverter is selected for its enhanced voltage and current handling capacity,ensuring high-performance energy conversion and efficient control of the system.First,the inverter’s main circuit parameters are designed according to the motor power rating,ensuring compatibility and optimal operation between the motor and inverter.A mathematical model of the PMSM incorporating dynamic characteristics such as speed,torque,and flux is developed to simulate its real-world performance under varying load conditions.The control strategy is designed to optimize energy flow,ensuring effective peak shaving and load leveling by managing power exchanges between the gravity storage unit and the power grid and regulating the motor’s speed and torque to meet real-time grid deman

关 键 词：重力储能 控制策略 建模仿真 

分 类 号：TM921.2[电气工程—电力电子与电力传动]